Decorative extrusion



FIG. 1 is a front elevational view of the decorative extrusion showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a right side elevational view, the left side elevational view being a mirror image thereof;

FIG. 4 is a bottom plan view, the top plan view being a mirror image thereof. 

The ornamental design for a decorative extrusion, as shown and described. 